%0 Journal Article %A A. F. Nikiforov %A V. B. Uvarov %T On~a~new approach to the theory of special functions %J Sbornik. Mathematics %D 1975 %P 515-525 %V 27 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1975_27_4_a4/ %G en %F SM_1975_27_4_a4